Nuclear Factor I/A Controls A-fiber Nociceptor Development.
10.1007/s12264-020-00486-7
- Author:
Lu QI
1
;
Guangjuan YIN
2
;
Yongchao ZHANG
2
;
Yeqi TAO
2
;
Xiaohua WU
2
;
Richard M GRONOSTAJSKI
3
;
Mengsheng QIU
4
;
Yang LIU
5
Author Information
1. College of Life Sciences, Zhejiang University, Hangzhou, 310058, China.
2. Zhejiang Key Laboratory of Organ Development and Regeneration, Institute of Life Sciences, Hangzhou Normal University, Hangzhou, 310036, China.
3. Department of Biochemistry, Program in Genetics, Genomics and Bioinformatics, Center of Excellence in Bioinformatics and Life Sciences, State University of New York at Buffalo, Buffalo, NY, 14203, USA.
4. College of Life Sciences, Zhejiang University, Hangzhou, 310058, China. m0qiu001@yahoo.com.
5. Zhejiang Key Laboratory of Organ Development and Regeneration, Institute of Life Sciences, Hangzhou Normal University, Hangzhou, 310036, China. yang_liu@idrbio.org.
- Publication Type:Journal Article
- Keywords:
A-fiber mechanonociceptor;
Acute pain;
Dorsal root ganglion;
Nociceptor;
Nppb;
Npy2r;
Pinprick pain
- From:
Neuroscience Bulletin
2020;36(7):685-695
- CountryChina
- Language:English
-
Abstract:
Noxious mechanical information is transmitted through molecularly distinct nociceptors, with pinprick-evoked sharp sensitivity via A-fiber nociceptors marked by developmental expression of the neuropeptide Y receptor 2 (Npy2r) and von Frey filament-evoked punctate pressure information via unmyelinated C fiber nociceptors marked by MrgprD. However, the molecular programs controlling their development are only beginning to be understood. Here we demonstrate that Npy2r-expressing sensory neurons are in fact divided into two groups, based on transient or persistent Npy2r expression. Npy2r-transient neurons are myelinated, likely including A-fiber nociceptors, whereas Npy2r-persistent ones belong to unmyelinated pruriceptors that co-express Nppb. We then showed that the transcription factors NFIA and Runx1 are necessary for the development of Npy2r-transient A-fiber nociceptors and MrgprD C-fiber nociceptors, respectively. Behaviorally, mice with conditional knockout of Nfia, but not Runx1 showed a marked attenuation of pinprick-evoked nocifensive responses. Our studies therefore identify a transcription factor controlling the development of myelinated nociceptors.
